Cisco SPA112 Administration Guide - Page 71

NAT Support Parameters, Send Resp To Src Port

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Configuring Voice Configuring Voice Settings 4 Field G729b Codec Name EncapRTP Codec Name Description G.729b codec name used in SDP. Default setting: G729ab. EncapRTP codec name used in SDP. Default setting: EncapRTP. NAT Support Parameters Field Description Handle VIA received If you select yes, the ATA processes the received parameter in the VIA header (this value is inserted by the server in a response to anyone of its requests) If you select no, the parameter is ignored. Select yes or no from the drop-down menu. Default setting: no. Handle VIA rport If you select yes, the ATA processes the rport parameter in the VIA header (this value is inserted by the server in a response to anyone of its requests) If you select no, the parameter is ignored. Select yes or no from the drop-down menu. Default setting: no. Insert VIA received Inserts the received parameter into the VIA header of SIP responses if the received-from IP and VIA sent-by IP values differ. Select yes or no from the drop-down menu. Default setting: no. Insert VIA rport Inserts the parameter into the VIA header of SIP responses if the received-from IP and VIA sent-by IP values differ. Select yes or no from the drop-down menu. Default setting: no. Substitute VIA Addr Lets you use NAT-mapped IP:port values in the VIA header. Select yes or no from the drop-down menu. Default setting: no. Send Resp To Src Port Sends responses to the request source port instead of the VIA sent-by port. Select yes or no from the dropdown menu. Default setting: no. STUN Enable Enables the use of STUN to discover NAT mapping. Select yes or no from the drop-down menu. Default setting: no. Cisco SPA100 Series Phone Adapters Administration Guide 71

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Configuring Voice
Configuring Voice Settings
Cisco SPA100 Series Phone Adapters Administration Guide
71
4
NAT Support Parameters
G729b Codec Name
G.729b codec name used in SDP. Default setting:
G729ab.
EncapRTP Codec
Name
EncapRTP codec name used in SDP. Default setting:
EncapRTP.
Field
Description
Handle VIA received
If you select yes, the ATA processes the received
parameter in the VIA header (this value is inserted by
the server in a response to anyone of its requests) If
you select no, the parameter is ignored. Select
yes
or
no
from the drop-down menu. Default setting: no.
Handle VIA rport
If you select yes, the ATA processes the rport
parameter in the VIA header (this value is inserted by
the server in a response to anyone of its requests) If
you select no, the parameter is ignored. Select
yes
or
no
from the drop-down menu. Default setting: no.
Insert VIA received
Inserts the received parameter into the VIA header of
SIP responses if the received-from IP and VIA sent-by
IP values differ. Select
yes
or
no
from the drop-down
menu. Default setting: no.
Insert VIA rport
Inserts the parameter into the VIA header of SIP
responses if the received-from IP and VIA sent-by IP
values differ. Select
yes
or
no
from the drop-down
menu. Default setting: no.
Substitute VIA Addr
Lets you use NAT-mapped IP:port values in the VIA
header. Select
yes
or
no
from the drop-down menu.
Default setting:
no.
Send Resp To Src Port
Sends responses to the request source port instead of
the VIA sent-by port. Select
yes
or
no
from the drop-
down menu. Default setting: no.
STUN Enable
Enables the use of STUN to discover NAT mapping.
Select
yes
or
no
from the drop-down menu. Default
setting: no.
Field
Description